The £200m global rail test and innovation hub in South Wales is track for completion by 2025.
The Welsh Government's flagship Global Centre of Rail Excellence (GCRE) project will create a hub for rolling stock and infrastructure testing, innovation, storage and maintenance at the site of the former Nant Helen opencast mine and Onllwyn coal washery at the head of the Dulais and Tawe Valleys.
It will be used by the UK and international rail industry and is expected to create over 100 direct jobs, as well as being a catalyst for creating many more as academic and industrial partners are attracted to the site.